| 000 | 00655nam a2200169 4500 | ||
|---|---|---|---|
| 001 | 0000002628 | ||
| 008 | 111025 1983 eng d | ||
| 040 | _aJMGHQ | ||
| 090 | 0 | 0 |
_a553.64 _bSHE |
| 100 | 1 | _aSheldon, Richard P. | |
| 245 | 1 | 0 |
_aSearch for and development of undiscovered phosphate resources in Southeast Asia _cRichard P. Sheldon |
| 260 | _c1983 | ||
| 300 |
_a55 p. _bill. _c30 cm |
||
| 504 | _aIncludes bibliographical references | ||
| 520 | _aThe countries of the humid tropical areas of the world lack the soill fertility necessary for high agricultural productivity, although water and sunlight are abundant. | ||
| 650 | 0 | _aMinerals | |
| 999 |
_c22882 _d22882 |
||